Trying to figure out VLANs, 3 LAN's, 1 Ubiquiti AP
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John_galt/all,
I am not sure if this will help you out with switch setup but I was on the phone with dlink tech(2x for an hour) support and they walked me thru the following configuration for my switch and VLANs. I also use a Ubiquity Pro. The VLANs are working…that is I am able to connect to each of the ssids wirelessly(I need to do some more study to make sure I have isolated them correctly on my pfsense)Some notes:
- My pfsense box/LAN is connected to eth1 of my switch
- My Unifi AP is connected to eth2 of my switch (Apple TV is connected to eth3 of the switch)
- My VLAN 12, 25 and 64 all have separate ssids on my Ubiquity AP pro(all working)
- VLAN 38 is for my Apple TV (Apple TV does not support VLANs), not connected to my AP
- Make sure to input the VLAN ID and check the "Use VLAN with VLAN ID" box in the Wireless Networks->Advanced Options-> VLAN of the Unifi Contoller on you computer(can't access this from the mobile app)
Disclaimers-
I am by no means an expert!
Sorry for the rookie screen shots?..I manage my network from a dedicated computer with no internet access.While your switch might be different I thought this might help with tagging, untagging and member configuration.
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Thanks for the information pfBasic & Velcro
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"PVID is assigning a tag to traffic coming to the switch from the port"
Not sure where you read that.. not really tagging anything.. Its just saying hey if I see untagged traffic coming into this interface its going to be on the PVID vlan..
As Derelict was mentioning.. Maybe there is some odd thing you could do where you set the pvid different than untagged traffic. Normally setting the pvid would automatically mean that is untagged traffic why you would have to go in and also say vlan X is untagged not sure. Maybe you don't actually have to do that? I have a gs108ev3 in my av cabinet I could test that. But with use of their gui its no big deal to set untagged vlan same as the pvid.
The only ports that should have tagged traffic on them would be ports connecting to something that is going to understand the tags and use them.. Ie pfsense, ie uplink to another switch, your AP..
With your setup vlan 1 should/could be all the ports and untagged.
You would just your vlans as tagged to the ports connecting to pfsense on the switch and the port connecting to AP on the switch.
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Just gone through this with my setup.
As I understand:
PVID is used to tag traffic from a vlan unaware source with that vlan tag in the switch. So if you connected a PC to the switch and put the PVID in as 10 on the port that PC is connected to then that PC would then be on VLAN 10.
Equipment that is VLAN aware such as your AP does not need the PVID setting as this is tagging the traffic already. So based on the SSID each packet will get assigned to a VLAN. This is setup by the WLAN AP
To get the VLANS to work together you need to be able to get them through the switch. So you need to tell the switch to expect tagged packets from VLAN aware equipment, so the ports that you attach the WLAN AP to and the one that PF sense is connected to. You should only need to tag the different VLANS, your untagged normal network shouldn't need to be tagged (i.e. VLAN1).
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"PVID is used to tag traffic from a vlan unaware source with that vlan tag in the switch."
Where are you getting the idea that this tags it??
Yes this is correct..
"if you connected a PC to the switch and put the PVID in as 10 on the port that PC is connected to then that PC would then be on VLAN 10."But you are the 2nd person in this thread that has associated this with tagging…?? If your thinking of inside the switch?? Ok but its not really "tagged" unless it leaves the switch and the port it leaves on is set to tag that vlan. If you have a device on port 1 with pvid 10, and device on port 2 with pvid.. These devices will never see any tag when talking to each other.
Yes the PVID sets the vlan for what the switch sees coming into that port that does not have a tag on it.. But keep in mind that its not really tagged, if it helps to think of it as tagged "inside" the switch ok I guess. But tagged and untag really only come into play when entering or leaving the switch..
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I am beginning to think that these switches are using "Untagged" for transmitted traffic (remove the tag on traffic sent out that port from this VLAN) and "PVID" for received traffic (Traffic received without a tag on this port is placed on this VLAN) on a port.
Though I am struggling to think of a scenario where you wouldn't want them both the same under normal circumstances.
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Agreed I don't see why you have to actually set the untagged vlan on the port if your setting the pvid.. Should really be a given they are the same - but I guess it makes a bit easier to keep track of their 2 different ui.. They have where you can look at the ports pvid and then you can look to at a specific vlan and see the ports being tagged or untagged on that vlan. So in this case it makes it easy to see that yup all those ports are in vlan X untagged.
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If I thought about it a while I could probably come up with a way to leverage that into multiple broadcast domains downstream (think big wi-fi) with a single layer 3 upstream.
"Asymmetric VLANs" are sort of a poor-man's Private VLAN.
I have three ports:
1 PVID 10 Untagged 10
2 PVID 10 Untagged 11
3 PVID 10 Untagged 12I put pfSense on port 1.
Broadcasts from ports 2 and 3 reach pfSense but not each other
So 2 cannot communicate with 3, 3 cannot communicate with 2, but both can communicate with 1. Ports 2 and 3 are on separate VLANs but both egress the switch untagged.
Unexplained is broadcasts from port 1 to ports 2 and 3 in that case, however.
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Derelicts instructions were exactly what I needed, all is working.
I didn't ever do anything with PVIDs, they are all set to the default VLAN 1. The discussion here helped me understand what they are used for. Thank you too all!
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You really need to change the pvid from 1 if your going to put a port into an untagged vlan. If your only using it for say an uplink to pfsense that does the vlans and or a AP then no there is no reason to change the pvid if your going to use vlan 1 (default) vlan as your main network with all devices on the switch being in vlan 1.
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Setup has pfSense on port 1,
The AP in on the switch
A desktop PC
And an HTPC
Everything is currently working. How should I change the PVIDs and why?
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You shouldn't unless you need/want to.. You mean your switch is your AP?
"The AP in on the switch"
Are you using some old wifi router with a built in switch as your AP. The native firmware of these rarely support vlans on the switch ports. Now if running some 3rd party firmware on it and the hardware supports then sure you can do vlans.
You can use vlan 1 just fine, its common practice in an enterprise/work network not to use vlan 1. But in a home/lab/smb there is no reason why you can not just use the default vlan 1 as your main vlan.
Your PC and HTPC are connected to your switch.. If you don't want these on the main vlan, then you would change the pvid of those ports.
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Ok great thanks. The switch is a web managed switch. The AP is a Ubiquiti connected to the switch
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So on this same setup I have a question.
I'm getting some Rx Bad Packets on the switch (TP-Link SG-108E).
Cables are good, interfaces are good, VLANs are causing the problem. If I disable the VLAN, then 0 Bad Packets.
I've attached screenshots of my current config, is this correct?
-No Flow Control
-No Storm Control
-No Bandwidth Limiting
-YES IGMP SnoopingBad Packets are pretty low right now
~0.04% on Port 1 (pfSense)
~0.003% on Port 3 (Ubiquiti AP)But earlier it was ~1% on Port 1 and ~2% on Port 3.
Everything is working, but my Ubiquiti AP AC PRO seems slow. About the best I can get out of it is between 160-200Mbps via iPerf on an S7 Edge (AC, MIMO) on a clean channel with excellent reception. I got better performance out of my a TP-Link as an AP.
I would assume this is not a pfSense problem as the AP & S7 are on the same LAN (S7 is not on VLAN), also there are no dropped packets on any interface in pfSense.
Any suggestions on speeding up the wifi is appreciated. Ubiquiti support asked for Speedtest results to test my performance after I sent them iperf results…. They ultimately just recommended replacing the AP, I did exchange it, but the performance is the same.
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Not sure what to tell you there:
sg300-223#sh interface counters gig 46
Port InUcastPkts InMcastPkts InBcastPkts InOctets
–-------------- ------------ ------------ ------------ ------------
gi46 2147428356 5953624 1534156 1958781584609Port OutUcastPkts OutMcastPkts OutBcastPkts OutOctets
gi46 1385816636 39047110 10667840 275780164044
Alignment Errors: 0
FCS Errors: 0
Single Collision Frames: 0
Multiple Collision Frames: 0
SQE Test Errors: 0
Deferred Transmissions: 0
Late Collisions: 0
Excessive Collisions: 0
Carrier Sense Errors: 0
Oversize Packets: 0
Internal MAC Rx Errors: 0
Symbol Errors: 0
Received Pause Frames: 0
Transmitted Pause Frames: 0That is a tagged interface to an SG-2440 igb NIC.
For sure the errors between the AP and the switch have zero to do with the firewall.
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For sure the errors between the AP and the switch have zero to do with the firewall.
Yeah, I was just hoping I'd misconfigured something simple on the switch that would be easy for someone else to spot.
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I am seeing the same sort of thing on the other side of the MoCA 2 here. Not quite sure what that's about yet. Port 1 is the MoCA adapter (untagged + tagged), port 8 is the Ruckus 7372 (tagged). All the other connected ports are simple untagged ports and should be completely clean. The MoCA 2 adapters aren't really dot1q but seem to handle the frame sizes just fine. The one up here on the cisco sg300 is completely clean.
Might have to put a brocade down there for a while so I can see what's really going on. It's a dlink right now.
![Screen Shot 2017-04-29 at 3.24.56 PM.png](/public/imported_attachments/1/Screen Shot 2017-04-29 at 3.24.56 PM.png)
![Screen Shot 2017-04-29 at 3.24.56 PM.png_thumb](/public/imported_attachments/1/Screen Shot 2017-04-29 at 3.24.56 PM.png_thumb) -
Well I honestly don't know what a bunch of the stuff you said is, but some googling tells me that a MoCA is Multimedia over Coax.
The closest thing I have to that on my network is the PoE injector, which really isn't close to that at all haha. Could the PoE injector be causing problems?
My assumption was that the switch was the problem, considering that it's the weakest (cheapest) link in the network. I've been looking around eBay to see if I could pick up a better used switch for cheap, but haven't found one yet.
Could these packet issues be related to my Ubiquiti AP slow wifi?
The bad Rx packets are up to ~1.4% on the AP port (#3) now, but still at ~0.097% for the pfSense port (#1).
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"between 160-200Mbps via iPerf on an S7 Edge (AC, MIMO) on a clean channel with excellent reception"
Between what an what? What is the client, what is the server for your iperf test?
What exactly is connect to ports 1 and 3?? Your AP? How are they configured for your vlans?
edit: Just ordered one of these switches. It was only $30 and I can replace the dumb switch I am using for my raspberry pis with it ;) Or change out my netgear in the AV cabinet.. But having it around will allow me to test both the lowend netgear GS108Ev3 and this TL-SG108E, their seem to be lots of people using them here..
So couple of days and I will connect it to my unifi APs that are doing vlans using poe injectors so will be able to duplicate your setup. I see no errors on my sg300 or my netgear that my AP are currently connected to.
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The iPerf test I've seen pretty consistent results with multiple setups.
I've tried S7 Edge as client and server connected to both a desktop and laptop on wired connections (both desktop & laptop have Intel NICs and get full gigabit ~944 Mbps iPerf between one another).
The topology is:
S7 Edge (5GHz VHT 80) <> Ubiquiti AP AC PRO (Cat 7<>Injector<>Cat 6) <> SG-108E (Port 3) <> SG-108E (Port 7) <> Desktop or Laptop Intel NIC (Cat 6)
VLAN setup on the switch in the screenshots of this post: https://forum.pfsense.org/index.php?topic=129420.msg714891#msg714891
VLAN setup on pfSense attached to this post. DHCP servers, firewall rules have been setup and both VLANs seem to be working fine. I don't know if I can misconfigure them in such a way that they route and access the internet but are still wrong, other than firewall rules but I've tried with allow any rules?
I'm looking forward to seeing how a similar setup works for you!
It's possible that the issues I'm having with both Bad Rx Packets and slow wifi stem from the Ubiquiti AP, but I've tried two different units so I kind of don't think so?